Weather variation forecast information providing system and weather variation forecast information providing method

Abstract

A weather variation forecast information providing system includes at least three atmospheric pressure measuring devices arranged at different positions in a specific region and a data processing device processing the measured atmospheric pressure data. The data processing device includes an atmospheric pressure data acquiring unit consecutively acquiring the measured atmospheric pressure data, an atmospheric pressure gradient calculating unit calculating a two-dimensional atmospheric pressure gradient vector including atmospheric pressure gradients at a given position in the specific region in two directions as elements based on the atmospheric pressure data acquired from three of the atmospheric pressure measuring devices, and a weather variation forecast information generating unit generating the information used to forecast a given weather variation in the specific region.

1 . A weather variation forecast information providing system that provides information used for forecasting a given weather variation that occurs due to a change in atmospheric pressure in a specific local region, the weather variation forecast information providing system comprising:
 at least three atmospheric pressure measuring devices that are arranged at different positions in the specific region; and   a data processing device that processes atmospheric pressure data measured by each of the atmospheric pressure measuring devices,   wherein the data processing device includes:
 an atmospheric pressure data acquiring unit that consecutively acquires the atmospheric pressure data measured by each of the atmospheric pressure measuring devices; 
 an atmospheric pressure gradient calculating unit that calculates a two-dimensional atmospheric pressure gradient vector including atmospheric pressure gradients at a given position in the specific region in two directions as elements based on the atmospheric pressure data acquired by the atmospheric pressure data acquiring unit from three of the atmospheric pressure measuring devices arranged at three positions that are not located on one straight line; and 
 a weather variation forecast information generating unit that generates the information used for forecasting the weather variation based on the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
   
     
     
         2 . The weather variation forecast information providing system according to  claim 1 , wherein the weather variation forecast information generating unit generates information indicating whether or not low atmospheric pressure is generated as the information used for forecasting the weather variation based on a magnitude of the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
     
     
         3 . The weather variation forecast information providing system according to  claim 1 , wherein the weather variation forecast information generating unit generates information of a direction of low atmospheric pressure in the specific region as the information used for forecasting the weather variation based on a direction of the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
     
     
         4 . The weather variation forecast information providing system according to  claim 1 , wherein the weather variation forecast information generating unit generates at least one of movement direction information, movement speed information, movement distance information, and movement time information of low atmospheric pressure in the specific region as the information used for forecasting the weather variation based on a temporal change in the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
     
     
         5 . The weather variation forecast information providing system according to  claim 1 , wherein the atmospheric pressure gradient calculating unit calculates a three-dimensional atmospheric pressure gradient vector including atmospheric pressure gradients at a given position in three directions as elements based on the atmospheric pressure data acquired by the atmospheric pressure data acquiring unit from four of the atmospheric pressure measuring devices arranged at four positions that are not located on one plane instead of the two-dimensional atmospheric pressure gradient vector. 
     
     
         6 . The weather variation forecast information providing system according to  claim 1 ,
 wherein the atmospheric pressure gradient calculating unit sets three of the atmospheric pressure measuring devices arranged at three positions that are not on one straight line or four of the atmospheric pressure measuring devices arranged at four positions that are not on one plane as one set and calculates the atmospheric pressure gradient vector for each of a plurality of the sets, and   wherein the weather variation forecast information generating unit generates the information used for forecasting the weather variation based on a plurality of the atmospheric pressure gradient vectors calculated by the atmospheric pressure gradient calculating unit.   
     
     
         7 . The weather variation forecast information providing system according to  claim 1 , further comprising:
 a weather variation forecast unit that determines whether or not a given criterion is satisfied based on the information used for forecasting the weather variation and forecasts an occurrence of the weather variation based on a result of the determination.   
     
     
         8 . The weather variation forecast information providing system according to  claim 1 , wherein each of the atmospheric pressure measuring devices includes a pressure-sensitive element that changes a resonance frequency in accordance with atmospheric pressure and an atmospheric pressure sensor that outputs the atmospheric pressure data according to a vibration frequency of the pressure-sensitive element. 
     
     
         9 . The weather variation forecast information providing system according to  claim 8 , wherein the pressure-sensitive element included in the atmospheric pressure sensor is a double-ended tuning fork-type piezoelectric resonator. 
     
     
         10 . A method of providing weather variation forecast information in which information used for forecasting a given weather variation that occurs due to a change in atmospheric pressure in a specific local region is provided, the method comprising:
 measuring atmospheric pressure by using at least three atmospheric pressure measuring devices that are arranged at different positions in the specific region;   consecutively acquiring the atmospheric pressure data measured by each of the atmospheric pressure measuring devices;   calculating a two-dimensional atmospheric pressure gradient vector including atmospheric pressure gradients at a given position in the specific region in two directions as elements based on the atmospheric pressure data acquired from three of the atmospheric pressure measuring devices arranged at three positions that are not located on one straight line in the consecutive acquiring of the atmospheric pressure data; and   generating the information used for forecasting the weather variation based on the atmospheric pressure gradient vector calculated in the calculating of a two-dimensional atmospheric pressure gradient vector.   
     
     
         11 . The weather variation forecast information providing system according to  claim 2 , wherein the weather variation forecast information generating unit generates information of a direction of low atmospheric pressure in the specific region as the information used for forecasting the weather variation based on a direction of the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
     
     
         12 . The weather variation forecast information providing system according to  claim 2 , wherein the weather variation forecast information generating unit generates at least one of movement direction information, movement speed information, movement distance information, and movement time information of low atmospheric pressure in the specific region as the information used for forecasting the weather variation based on a temporal change in the atmospheric pressure gradient vector calculated by the atmospheric pressure gradient calculating unit. 
     
     
         13 . The weather variation forecast information providing system according to  claim 2 , wherein the atmospheric pressure gradient calculating unit calculates a three-dimensional atmospheric pressure gradient vector including atmospheric pressure gradients at a given position in three directions as elements based on the atmospheric pressure data acquired by the atmospheric pressure data acquiring unit from four of the atmospheric pressure measuring devices arranged at four positions that are not located on one plane instead of the two-dimensional atmospheric pressure gradient vector. 
     
     
         14 . The weather variation forecast information providing system according to  claim 2 ,
 wherein the atmospheric pressure gradient calculating unit sets three of the atmospheric pressure measuring devices arranged at three positions that are not on one straight line or four of the atmospheric pressure measuring devices arranged at four positions that are not on one plane as one set and calculates the atmospheric pressure gradient vector for each of a plurality of the sets, and   wherein the weather variation forecast information generating unit generates the information used for forecasting the weather variation based on a plurality of the atmospheric pressure gradient vectors calculated by the atmospheric pressure gradient calculating unit.   
     
     
         15 . The weather variation forecast information providing system according to  claim 2 , further comprising:
 a weather variation forecast unit that determines whether or not a given criterion is satisfied based on the information used for forecasting the weather variation and forecasts an occurrence of the weather variation based on a result of the determination.   
     
     
         16 . The weather variation forecast information providing system according to  claim 2 , wherein each of the atmospheric pressure measuring devices includes a pressure-sensitive element that changes a resonance frequency in accordance with atmospheric pressure and an atmospheric pressure sensor that outputs the atmospheric pressure data according to a vibration frequency of the pressure-sensitive element. 
     
     
         17 . The weather variation forecast information providing system according to  claim 16 , wherein the pressure-sensitive element included in the atmospheric pressure sensor is a double-ended tuning fork-type piezoelectric resonator.